CCD spectrophotometry of CVs - IV. 3430-7850 Åatlas for 27 faint systems U. Munari, T. Zwitter and A. Bragaglia Astron. Astrophys. Suppl. Ser., 122 3 (1997) 495-505 Published online: 15 May 1997 DOI: 10.1051/aas:1997337